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Financial Statement Details (Tables)

12 Months Ended

Dec. 31, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Summary of Inventories

Inventories consist of the following (in thousands):

			December 31,
			2020						2019
Finished goods			$	27,009					$	21,229
Raw materials and components			6,943						4,061
			$	33,952					$	25,290

Summary of Property, Plant and Equipment and Rental Assets

Property, plant and equipment consists of the following (in thousands):

			December 31,
			2020						2019
Land			$	244					$	253
Buildings			2,213						2,303
Test equipment			16,775						10,952
Computer equipment and purchased software			7,899						6,911
Product tooling			3,125						2,139
Furniture and fixtures			1,310						1,535
Vehicles			2,988						2,535
Leasehold improvements			860						145
			35,414						26,773
Less—accumulated depreciation and amortization			(21,715)						(16,017)
			$	13,699					$	10,756

Rental assets consist of the following (in thousands):

			December 31,
			2020						2019
Rental assets			$	21,863					$	18,176
Less—accumulated depreciation			(15,754)						(12,791)
			$	6,109					$	5,385

Summary of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consist of the following (in thousands):

			December 31,
			2020						2019
Royalties			$	2,410					$	1,415
Payroll and related expenses			6,006						2,716
Professional fees			921						483
Accrued interest			888						1,543
Deferred revenue			2,853						2,235
Operating lease liabilities			1,619						1,101
Acquisition-related liabilities			—						1,000
Other			8,676						7,555
			$	23,373					$	18,048

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Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
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Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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